Risk factors related to Toxoplasma gondii seroprevalence in indoor-housed Dutch dairy goats

Preventive Veterinary Medicine
Huifang DengM Opsteegh

Abstract

Toxoplasma gondii can cause disease in goats, but also has impact on human health through food-borne transmission. Our aims were to determine the seroprevalence of T. gondii infection in indoor-housed Dutch dairy goats and to identify the risk factors related to T. gondii seroprevalence. Fifty-two out of ninety approached farmers with indoor-kept goats (58%) participated by answering a standardized questionnaire and contributing 32 goat blood samples each. Serum samples were tested for T. gondii SAG1 antibodies by ELISA and results showed that the frequency distribution of the log10-transformed OD-values fitted well with a binary mixture of a shifted gamma and a shifted reflected gamma distribution. The overall animal seroprevalence was 13.3% (95% CI: 11.7–14.9%), and at least one seropositive animal was found on 61.5% (95% CI: 48.3–74.7%) of the farms. To evaluate potential risk factors on herd level, three modeling strategies (Poisson, negative binomial and zero-inflated) were compared. The negative binomial model fitted the data best with the number of cats (1–4 cats: IR: 2.6, 95% CI: 1.1–6.5; > = 5 cats:IR: 14.2, 95% CI: 3.9–51.1) and mean animal age (IR: 1.5, 95% CI: 1.1–2.1) related to herd positivity. In conclusion, the ...Continue Reading

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Citations

Nov 25, 2016·Parasite : Journal De La Société Française De Parasitologie·Nian ZhangHaizhu Zhang
Dec 12, 2017·EFSA Journal·UNKNOWN European Food Safety Authority, UNKNOWN European Centre for Disease Prevention and Control
Feb 26, 2020·Food and Waterborne Parasitology·S StelzerG Schares
Jul 28, 2020·Research in Veterinary Science·J P DubeyO C H Kwok

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